Here’s a graph of the number of “activities” we are behind lemmy.world, and aussie.zone as well. Last time we had the issue (a couple of weeks back) aussie.zone recovered much faster than us. Now we seem to be gaining on them, 30k worse than them down to 10k worse than them over the last 24 hours. So perhaps the prefetching is working!
The up and down is just normal variance over the day, it improves when the other side of the world are asleep, and gets worse when they all wake up.